Gas-producer.



c. L. sTRAUB.

GAS PRODUCER.

APPLICATION FILED APR. '1, 1906.

Patented Jan.12,

2 SHEETS-SHEET 1.

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O. L. STRAUBH- GAS PRODUCER.

APPLICATION rum) APR. 1, 1906.

909,345; r tentgd Jan. 12,1909.

2 SHEETS-SHEET 2.

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CONTANTINE LEE STRAUB, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO POWER AN D MINING MACHINERY COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

GAS-PRODUCER.

Specification of Letters Patent.

Patented Jan. 12, 1909.

erator and means for moving air and steam and delivering them to the lower part of the fire bed. The apparatus, as an entirety,'is generally used in direct connection with a gas engine, under such relationship of parts that the suction of the engine is exerted directly upon the gas generating chamber, drawing the gas therefrom and also drawing thereto the supplies of air and steam.

Figure 1 is a central vertical section of a gas producer embodying my improvements. Fig. 2 is a plan view, the upper part of the fuel magazine being removed. Fig. 3.shows the furnace shell or casing in section, andalso.

shows the grate supporting plate in plan. View and the superheat'er chambers thereon. Fig. 4 is a plan view of the annular plate in which is supported the grate, the preferred construction of the latter being also represented. Fig. 5 is a cross sectional view taken on the line 0;, :1; of Fig. 4. Figs. 6 and 7 are detail views illustrating the grate sections.

In the construction shown there is an exterior casing or shell 1 which extends from .the bottom of the apparatus to the cover arts at the-upper end, this shell being,

ormed in two or more sections of sheet 7 metal. It in'close" the ash chamber 2, the

lower part of the fire chamber 3 and the up ppr part of the fire chamber or furnace 4.

ithin the latter there is a lining 5 of suitable refractory material, and between this and the shell there is brickwork or suitable packing 6.

7 indicates the grate, the bars of which are supported upon the annular plate 8 which also carries the superheating chambers 9. Between the latter and the lining 5 is the ring plate 10. The plate 8 furnishes the suport for nearly all of the internal parts and means of the 1S stronglysecuredin place by to t e outer casing bracket plates 11 riveted or shell 1. At the bottom the casing is secured to the floor plate 12 upon the top of which there is a bed of refractory material, firebrick or the like, as at 13. The grate bars 14 are each'pivoted at its ends at 15 in sockets formed in the supporting plate 8. One of the bars 14 has a depending arm 16 which is loosely connected to a rocker arm 17 carried by rock shaft 18. The latter is supported in a bracket orhanger 19 atits inner end, and at its outer end extends through the shell or casing 1 and is provided with a handle 20 on the outside of the furnace. Each of the grate bars has a short projectingarm 21 and these are ,joined together by a connecting bar 22. When the lever 20 is moved back and forth it, through the parts described, causes the rocking of the grate bars 14.

It will be observed by' reference to Figs. 3 and 4 that the opening in the plate 8 in which is situated the grate is of reduced or relatively small size, as compared with the plat itself, and that the grate is approximately circular in outline, and composedof a series of movable grate bars the central one or ones of which are approximately rectangular in outline while the outside bars are approximately of segmental shape.

The preferred form of grate is indicated in Figs. 4, 5,6 and 7. As here represented each bar is made up of aplurality of parts comprising a shaft 1.4, preferably rectangular in cross section, and a series of removable fuel supporting sections supported upon the said shaft. As shown in Fig. 4 the grate is formed of three bars, the central one of which is substantially rectangular in outline, and is formed of a series of separate sections 14 Fig. 7, supported side by side upon the central shaft 14*. Each section 14 is formed with a pair of downwardly extending parts arranged to constitute a seat 14 for the supporting shaft orbar 14. The upper surface of each of these sections is rounded as indicated in Figs. 5 and 7, and each is provided with a spacing flange 14. The outside grate bars, which are of segmental shape in outline, are each composed of a series of grate parts 14 set upon the central part of a shaft 14 and two grate pa ts 14 ,shaped as represented in Fig. 6, shaft.

lit the top of the refractory lining wall 5 there is an inwardly projecting flange formed one at each end of the spaces 26 to downward to lines well below the horizontal planes of there ionwhere the gas travels outward I from ihe center. downwardly extending part of the fuel magazine is arranged the steam generator 29. It has the vertical leg part 30 and the horizontal pan-like part 31. Its walls are formed of sheet steel comprising the cylindrical portion 32 parallel to the steel tube 2 8, and the upper part 33 riveted thereto.

34 1s a horizontal sheet steel diaphragm forming the top of the boiler or eva orator. At its edges it is secured by a steam tig t joint to the u wardly turned'edges of the upper part 33 of t e bottom of the boiler, and the two together are supported upon and firmly fastened to the bracket ring 35 which at 36 is riveted to the upper edge of the shell or casing, 1. The top of the furnace is shown at 37. It has a laterally extended floor capable of furnishing su port when the fuel is to be introduced an also when the material in the furnace is to be barred or when for other purposes operatives require such support.

his top part 37 is a casting shaped to ave a supportlng ring flange 38 resting u on and secured to the bracket flange 35' and having a central tubular part 39 to receive the upper part 27 of the fuel magazine and to support the lower ortion 28 thereof. It is connected to t e latter by a bracket, flange ordirectl above the central vertical leg 30 of the bol ervor evaporator to ermitaccess to v the interior of the boiler for c eansing it whenever required. The top 37 is also formed with conicalcavities 42 which extend down to the sheet steel diaphragm 34.

43 are 'hollowcones rigidly bolted to the flanges at the inner walls of the cavities 42. They extend downward through thewall 33 of the boiler. In this way a passage is provided directly above each of the recesses at 26 in the to part 23 of the lining wall, through whic passages the operatives can insert bars to the fuel mass whenever desired. In each of these passages there is a cone plug 44 so shaped as to automatically tightly close the. passage when the plug is in place. p v

Around this ceases 45, 45 are tubes extending from the upper part of the chamber in the exaporator or boiler to the superheaters 9. They are situated in the interior of the mass of lining materials 5 and 6. Preferably there is one of these for each of the su erheaters, 9. They conduct the steam an air either or both from the boiler to their respective su erheaters. The steam and air are compe led to travel nearly half way around the furnace in the superheater and finally escape from the latter through'the passage 46 1nto the ash it '2 or chamber below the fire grate7'.

Water is sup lied to. the evaporator or boiler 29*throug the ipe 47, the end 48 of which is laced somewliat above the wall 33 of the b0 err-i Y The flow of water is controlled by a float valve mechanism 56 suitably arranged which insures that the water shall rise, in the boiler only to a predetermined level which is always belovw the upper end of the'steam and air pipe 45..

57 indicates-an overfiowpipeleading fromv the evaporating pan so that should the float valve mechanism or other water-control deair there is a pipe 52 which communicates with the chamber below the. grate and is adapted to take in air at some suitable point outside the-producer. This pipe-is controlled by a valve or damper 53'; 54 is-a hand fan or blower adapted to force air through the duct '52.

The mode of operation of the apparatus described willbe readily understood y those acquainted with the art. The; coal or fuel is introduced to the heating and "gas producing chamber 3, 4, above the grate bars, and after the producing of the it can be continue indefinitely,- the fuel being fed at suitably-fiequent \intervals'to the magazine and feeder 27"'-'-28,from which it can pressure. v The operation-of the producer; is started at the time of commencin the; firin ,by forcing air into the cham r2 5111C? up throu h'the grate by means of the blower at 54.- d thereafter, as occasion requires, some of the air for the furnace ma be taken through thepi e 52, the amount eing subject to control y the valve or damper 53.

Water'in controlled quantities is admitted through the pipe 47 to the evaporator orboiler and when sufiicient heat is withdrawn gashas been commenced 7 from the rising g Steam isformed which is" .90 vice become deranged or fail to preserve the" conducted by the ipes 45 downward to the super-heaters 9. ir, through the valves at 50,: is admitted in quantities graduated as desired to the interior of the evaporator or boiler, and thence it passes with the steam down the pipes 45 to the generator and the lower part of the fire bed.

The gas generated in the fuel heating chamberrises to the top and is by the inwardly turned portion 24 of the lining or brickwork directed inward to come in close proximity with the vertical leg of the evaporater and then pass over the beveled or ohamfered part 25 and is caused to travel close to the under surface of the horizontal evaporator, and is finally guided through and taken off through the exhaust pipe, at 55.

What I claim is:

1. Ina gas producer, the combination with the furnace having the fuel heating chamber and the evaporator or boiler'above said chamber, of the inner lining of refractor material for said chamber having a wi er lower part, and the narrower upper part projected inwardly toward the center,

said inwardly projecting part lying in horizontal planes above the lower end of the eva orator or. boiler, substantially as set forth.

2. In a gas producer, the combination with the-furnace part having a fuel heating chamber, of an evaporator or boiler above the said chamber, an inner llning of refractory material for the fuel heating chamber having its upper portion extended inward toward the center at horizontal planes above the bottom of the boiler, and tubes inserted between the lining and the shell of the furevaporator or tube extending outward, the diaphragm or top wall 34 having its edges secured to the edges of the aforesaid sheet metal walls, and

the ducts for conveying steam from the said boiler to the'lower part of the fire bed, sub stantially as set forth.

4. In a gas producer, the combination with the furnace part having a fuel heating chamber, of an eva orator or boiler above the said chamber, a ining of refractory material for the fuel heating chamber havin its upper portion extended inward towar the center on horizontal planes above the bottom of the boiler, and means arranged to cause a circulation of the hot gases from the fuel body over the extended portion of the refractory linin and in proximity to the boiler, substantially as set forth.

In testimony whereof I a'lfix my signature, in presence of two witnesses.

CONSTANTINE LEE STRAUB.

Witnesses:

LUDWIG KAUFMANN, FRED G. BECKER. 

